linux-imx

/*

 * Ultra Wide Band

 * Life cycle of devices

 *

 * Copyright (C) 2005-2006 Intel Corporation

 * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License version

 * 2 as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

 * 02110-1301, USA.

 *

 *

 * FIXME: docs

 */

#include <linux/kernel.h>

#include <linux/slab.h>

#include <linux/device.h>

#include <linux/export.h>

#include <linux/err.h>

#include <linux/kdev_t.h>

#include <linux/random.h>

#include <linux/stat.h>

#include "uwb-internal.h"

​

/* We initialize addresses to 0xff (invalid, as it is bcast) */

static inline void uwb_dev_addr_init(struct uwb_dev_addr *addr)

{

    memset(&addr->data, 0xff, sizeof(addr->data));

}

​

static inline void uwb_mac_addr_init(struct uwb_mac_addr *addr)

{

    memset(&addr->data, 0xff, sizeof(addr->data));

}

​

/*

 * Add callback @new to be called when an event occurs in @rc.

 */

int uwb_notifs_register(struct uwb_rc *rc, struct uwb_notifs_handler *new)

{

    if (mutex_lock_interruptible(&rc->notifs_chain.mutex))

        return -ERESTARTSYS;

    list_add(&new->list_node, &rc->notifs_chain.list);

    mutex_unlock(&rc->notifs_chain.mutex);

    return 0;

}

EXPORT_SYMBOL_GPL(uwb_notifs_register);

​

/*

 * Remove event handler (callback)

 */

int uwb_notifs_deregister(struct uwb_rc *rc, struct uwb_notifs_handler *entry)

{